body {
    background: linear-gradient(135deg, #f5f7fa, #e4e8f0);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #ffffff;
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.1);
}

header .navbar {
    padding: 15px;
}

header .navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
}

.form-container {
    max-width: 500px;
    margin: auto;
    margin-top: 50px;
    padding: 30px;
    background-color: #ffffff;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
    text-align: center;
}

.form-container h1 {
    font-size: 1.75rem;
    color: #4a4a4a;
    margin-bottom: 10px;
}

.form-container p {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 20px;
}

.social-login {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.social-login a img {
    width: 40px;
    height: 40px;
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
}

.social-login a img:hover {
    transform: scale(1.1);
}

.btn-login {
    background-color: #ffc107;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    color: #ffffff;
    font-weight: bold;
    border-radius: 25px;
    transition: background-color 0.2s ease-in-out;
}

.btn-login:hover {
    background-color: #e0a800;
}

footer {
    background-color: #f8f9fa;
    padding: 10px;
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: #6c757d;
}

@media (max-width: 768px) {
    .form-container {
        padding: 20px;
        margin-top: 30px;
    }

    header .navbar-brand {
        font-size: 1.25rem;
    }

    .social-login a img {
        width: 35px;
        height: 35px;
    }

    .btn-login {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .form-container {
        padding: 15px;
        margin-top: 20px;
    }

    .btn-login {
        font-size: 0.85rem;
    }

    .social-login {
        flex-wrap: wrap;
        gap: 10px;
    }

    .social-login a img {
        flex: 0 0 30%;
        max-width: 30%;
    }
}